462 Records of the Indian Museum. [Vox Vila 
Described {rom one @ in good condition in my collection from 
Kandy, v-09, sent by Mr. E. E. Green. 
DESMOMYIA, mihi, gen. nov. 
Sub-fam. Avrthroceratinae. 
Apparently near, but quite distinct in several characters 
from Arthroceras.' Five posterior cells, 4th without any trace 
of contraction towards wing border; anal cell closed just before 
wing border. Remainder of venation in accordance with Willis- 
ton’s fig. of Arthroceras wing.? Antennae elongate, Ist joint as 
long as 2nd and 3rd together, cylindrical, 2nd broadly annular, 
3rd elongate with an apical style-like prolongation. Eyes contigu- 
ous for a considerable distance, bare; 3 ocelli. Proboscis rather 
short, stout, cylindrical; palpi elongate, narrow. Face with two 
dividing furrows below antennae and rather bulbous cheeks, as in 
Arthroceras. General appearance of whole insect, that of a Thereva, 
soft pubescence on thorax and abdomen, the latter with seven 
distinct segments. Fore tibiae unarmed, posterior tibiae with two 
distinct pale spurs each. Legs slender, thereviform. 
Desmomyia thereviformis, mihi, sp. nov. 
Head.—Vertex small, dark; three ocelli; occiput of a lighter 
grey than the dark blackish grey face. Proboscis and palpi black- 
ish grey. The whole head with stiff black hairs Eyes bare. 
Antennae dark grey, Ist joint elongate, cylindrical, 2nd broadly 
annular, half the length of the Ist, the 3rd joint is best described 
as diamond shaped, with rounded angles, the greatest breadth 
beyond the middle; the tip produced into an elongate narrow style 
with blunted tip, the style as long as the whole antennae. 
Thorax.—Dorsum dark grey, with three separated, moderate- 
ly broad blackish stripes, the outer ones with a tendency to an 
interruptionin front of the middle. Sides and scutellum moderate- 
ly dark grey, with pale yellowish white soft pubescence. 
Abdomen.—Seven segmented, the second the broadest, dark 
blackish grey with pale yellowish white soft pubescence. Genita- 
lia small, inconspicuous. 
Legs.—Black ; knees and femora more or less at base brown- 
ish yellow, the colour on the fore pair extending beyond the 
middle. Hind tibiae widened towards tips, hind metatarsus 
distinctly incrassate. The whole of the legs shortly pubescent, 
anterior tibiae unarmed, posterior tibiae with two distinct yellow- 
ish spines. 
Wings as in Leptis, except that the anal cell is closed just 
before the border, pale grey, stigma blackish, very elongate. Two 
ao. Western Himalayas. Long. 5—6 mm. 
1 The description of this genus is not accessible in this country. j 
2 North American Diptera (3rd Ed.), p. 161, fig. 18. 
